convicted in the 1988 pan am flight 103 bombing that killed 270 people when it exploded over lock be, scotland. al megrahi was released from prison on compassionate grounds in 2009 because he had cancer and was only expected to live three months. >>> u.s. officials say osama bin laden's death could mean the end of al qaeda's global terrorism network. in addition to bin laden's death, the new america foundation says cia drone strikes are responsible for taking out at least 1,200 militants since 2004. officials still caution the end of al qaeda would not mean the end of terrorists targeting the u.s. >>> and the walter reed army medical ceremony retired its ceremonial flags this weekend as it preps to close its door this september. the center treated more than 18,000 american troops for more than one century. patients and faculty will be relocated to a facility in bethesda, maryland. >>> a new report issued by federal officials say there's not enough evidence to say whether the dust and smoke cloud caused by the september 11th attacks on the world trade center caused cancer. findings are a setbac